Dual USB Ports for Flexible Expansion Choices

Yealink Wireless/Wired USB Headsets
Seamlessly compatible with Yealink wireless/wired USB headsets to meet the needs of users with large call volumes or headset preference and ideal for call center or administrative assistants.

Bluetooth/Wi-Fi/Wireless Headset Dongles

With the optional USB dongles, the T48U can be enabled of the features including Bluetooth and Wi-Fi or connecting to a compatible wireless headset.

Overview

  • Mid Level Business Phone
  • 2.7 Inch LCD screen
  • 2x USB Ports
  • Yealink WiFi & Bluetooth dongle compatible
  • 6x line keys (15 memory keys – 3 pages of 5 keys)

Possible deployment scenarios

  • Standard desk users
  • SC Communicator + headset users

  • Low usage desk space
  • A design/aesthetics conscious space
  • Budget conscious

Boost Productivity with New Powerful Chipsets

Sound and Hear with Remarkable Clarity

Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance.

Efficient Deployment and Management

Yealink T4U series supports effortless mass deployment and Zero Touch Provisioning with Yealink’s Redirection and Provisioning Service (RPS) and Boot mechanism, making the device management labour-saving and efficient for the administrators.

Yealink T42U SIP Phone | Features at a Glance

User Interface Features

  • 2.7″ color touch screen with backlight

Audio Features

  • Optima HD voice with Acoustic Shield and Smart Noise Filtering

Basic Features

  • Up to 12 SIP accounts
  • PoE support
  • Stand with two adjustable angles, wall mountable

Advanced Features

  • Wi-Fi via WF40/WF50, Bluetooth via BT41
  • Support expansion modules
  • Support USB recording

Connectivity

  • Dual USB ports, dual-port Gigabit Ethernet
  • Headset, EHS support

Yealink T42U Datasheet

Yealink T42U Flyer

Specifications

　ModelSIP-T48SIP-T46SIP-T42SIP-T40
LCD7" color

touch screen		4.3" color LCD2.7" graphical LCD2.3" graphical LCD
Resolution800 x 480 480 x 272192 x 64132 x 64
LCD Backlight√√√√
Line1616123
PoE√√√√
GigE√√√x
Wall Mounting√√√√
Foot Stand2 adjustable angles2 adjustable angles2 adjustable angles2 adjustable angles
USB Port (2.0 compliant)222x
Ethernet PortDual-port Gigabit EthernetDual-port Gigabit EthernetDual-port Gigabit Ethernet 2 x RJ45 10/100M Ethernet ports
Handset Port (RJ-9)√√√√
Headset Port (RJ-9)√√√√
External Yealink AC Adapter (optional) AC 100~240V input and DC 5V/2A output AC 100~240V input and DC 5V/2A output AC 100~240V input and DC 5V/1.2A output AC 100~240V input and DC 5V/600mA output
Line Key01063
Memory Key29 touch keys27 (3 pages of 9 keys)15 (3 pages of 5 keys)3
Yealink EXP50 Expansion Module 

(Accessory, purchased separately)		XXXX
Yealink EXP40 Expansion Module 

(Accessory, purchased separately)		√√xx
Yealink EXP20 Expansion Module 

(Accessory, purchased separately)		XXXX
Yealink EHS36 Wireless Headset Adapter

(Accessory, purchased separately)		√√√√
Yealink YHS32 Headset

(Accessory, purchased separately)		√√√√
Yealink Bluetooth Adapter BT40

(Accessory, purchased separately)		√√√X
Yealink Wi-Fi Adapter WF40

(Accessory, purchased separately)		√√√X
USB Recording√√√X
3-way Conferencing√√√√
HD VoiceHD Speaker

HD Handset		HD Speaker

HD Handset		HD Speaker

HD Handset		HD Speaker

HD Handset
Wide-band CodecsG.722，OpusG.722,OpusG.722, OpusG.722, Opus
Narrow-band CodecsG.711(A/µ), G.729, G729A, G.726,

G.723.1, iLBC, Opus		G.711(A/µ), G.729, G729A, G.726,

G.723.1, iLBC, Opus		G.711(A/µ), G.729, G729A, G.726,

G.723.1, iLBC, Opus		G.711(A/µ), G.729, G729A G.726, iLBC
LCD TypeFixedFixedFixedFixed
Operating SystemLinuxLinuxLinuxLinux
Built-in BluetoothXXXX
Built-in Wi-FiXXXX
USB Headset

(Accessory, purchased separately)		√√√X
CameraXXXX
Video ResolutionXXXX
Video CodecsXXXX
3-way Video ConferencingXXXX
5-way video/audio mixed conferencingXXXX
HDMI XXXX

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